For a start you need to review your goals. You mentioned Velocity - and that would be a prime one where some adjustment will be required. Check the velocity attained as it varies over a period of time and adjust the goal to be close to it (unless you want to give it a bonus or punish it).
If you really want to dole out specific proportions of the CPU you're probably talking about Resource Groups, though I'd not be that keen on that approach. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: [email protected] Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker Podcast Series (With Marna Walle): https://developer.ibm.com/tv/mpt/ or https://itunes.apple.com/gb/podcast/mainframe-performance-topics/id1127943573?mt=2 Youtube channel: https://www.youtube.com/channel/UCu_65HaYgksbF6Q8SQ4oOvA From: "Pesce, Andy" <[email protected]> To: [email protected] Date: 30/01/2020 14:24 Subject: [EXTERNAL] WLM Guidance/Suggestions ! ! ! Sent by: IBM Mainframe Discussion List <[email protected]> I have recently replace an IBM-2828 that had 5 GP's to a newer model machine IBM-3907-ZR1 with only 2 GP's. Does anyone know of a guide or paper or something that might have some things to look at or modify when reducing the number of GP's. I have 2 classes of service for my batch jobs. One runs with a velocity and importance of "2". This is a grouping we have called our critical path jobs that are time sensitive and they must run. Then I have another class that runs with a velocity, but has an importance of "3". This grouping is for jobs that are not time sensitive, but they do need to run and get service. The behavior that I am seeing is that the class that has the IMP-2 dominates the box until they are finished. The other jobs will sit in the initiator for 30mins up to an hour and I never see any service being consumed. Then once the IMP-2 jobs finish, then the other jobs will take off and get service. My goal is to have the IMP-2 take 80-90%, but give the IMP-3 a small chunk of service. The only way that I have been able to come close is to make both classes the same importance level. Any thoughts, documents, white papers, experiences with dealing with the reduction of GP's would be greatly appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
